FR62705E - Magnetic recorder - Google Patents

Magnetic recorder

Info

Publication number
FR62705E
FR62705E FR62705DA FR62705E FR 62705 E FR62705 E FR 62705E FR 62705D A FR62705D A FR 62705DA FR 62705 E FR62705 E FR 62705E
Authority
FR
France
Prior art keywords
magnetic recorder
recorder
magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of FR62705E publication Critical patent/FR62705E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
FR62705D 1951-03-06 1951-03-06 Magnetic recorder Expired FR62705E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR62705T 1951-03-06

Publications (1)

Publication Number Publication Date
FR62705E true FR62705E (en) 1955-06-20

Family

ID=8696084

Family Applications (1)

Application Number Title Priority Date Filing Date
FR62705D Expired FR62705E (en) 1951-03-06 1951-03-06 Magnetic recorder

Country Status (1)

Country Link
FR (1) FR62705E (en)

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